Types of Angles
What type of angle is less than 90°?
Acute angle
A straight path that goes on forever in both directions.
Line
A shape with 4 equal sides and 4 right angles.
Square
What is symmetry?
When a shape can be folded into matching halves
How many sides does a hexagon have?
6
What type of angle is exactly 90°?
Right Angle
A part of a line with two endpoints.
Line Segment
A shape with 4 sides where opposite sides are equal.
Rectangle
How many lines of symmetry does a square have?
4
What do we call a shape with all equal sides and equal angles?
Regular Polygon
What type of angle is greater than 90° but less than 180°?
Obtuse Angle
A part of a line with one endpoint that goes on forever.
Ray
A shape with exactly 3 sides.
Triangle
Does a rectangle have symmetry? How many lines?
yes, 2
True or False: All squares are rectangles.
True
What type of angle is exactly 180°?
Straight Angle
What do we call the point where two lines meet?
Vertex
A polygon with 5 sides.
Pentagon
Does a triangle always have symmetry?
No (only some do, like equilateral triangles)
True or False: All rectangles are squares.
False
Draw or describe an angle that is larger than a straight angle.
Reflex Angle
Name two types of lines that never meet.
Parallel Lines
A quadrilateral with only one pair of parallel sides.
Trapezoid
Name a shape with no lines of symmetry.
Scalene triangle
A shape has 4 sides and no equal sides. What is it?
Irregular queadrilateral